#include <REGX52.H>

unsigned char input_number[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};

void dtd (unsigned char location,c)
{
	switch(location)
	{
		case 1:	P2_2=1;P2_3=1;P2_4=1;break;
		case 2:	P2_2=0;P2_3=1;P2_4=1;break;
		case 3:	P2_2=1;P2_3=0;P2_4=1;break;
		case 4:	P2_2=0;P2_3=0;P2_4=1;break;
		case 5:	P2_2=1;P2_3=1;P2_4=0;break;
		case 6:	P2_2=0;P2_3=1;P2_4=0;break;
		case 7:	P2_2=1;P2_3=0;P2_4=0;break;
		case 8:	P2_2=0;P2_3=0;P2_4=0;break;
	}
	P0=input_number[c];
}

void main()
{
	dtd(7,2);
	while(1)
	{
		
	}
}
